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08/11/2016 | Now Free of HAARP, US Air Force Still Wants to Tinker with the Ionosphere
A lot of radio amateurs bemoaning the recent spate of poor HF conditions would love to have a way to improve propagation — perhaps without even having to rely on the whims of the Sun.
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03/11/2016 | The K7RA Solar Update
Average daily sunspot numbers and solar flux both increased over the past week.
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08/20/2015 | Undergrad Radio Amateur Uses Reverse Beacon Network in Research Project
A Virginia Tech undergraduate researcher and radio amateur has used Super Dual Auroral Radar Network (SuperDARN) and Reverse Beacon Network (RBN) data to study how solar flares impact HF radio propagation while Earth is in sunlight.
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06/23/2015 | Geomagnetic Storming Reaches Severe Level
Geomagnetic storming reached the G4 — severe — level at 0513 UTC on June 23.
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03/13/2015 | The K7RA Solar Update
For the second week in a row, average daily sunspot numbers were down.
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03/06/2015 | The K7RA Solar Update
The trend of weakening sunspot activity continues
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10/10/2014 | The K7RA Solar Update
The prediction for the planetary A index posits a more active geomagnetic future, at least for the near term.
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04/23/2011 | The K7RA Solar Update
Both the average daily sunspot numbers and solar flux were both higher for the week: Sunspot numbers up more than 3 points to 93.1 and the solar flux up by 8 points to 117.2. Geomagnetic activity was a bit lower -- with April 20 the most active day -- aft
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